Maxilla reconstruction with 100% BioOss: a clinical and tomographic follow-up study

• Thiago-Revillion Dinato ^[2] ; José-Cicero Dinato ^[2] ; Fábio-Sá Carneiro Sczepanik ^[2] ; Márcio-Lima Grossi ^[1]
  1. [1] Pontifícia Universidade Católica do Rio Grande do Sul

     Pontifícia Universidade Católica do Rio Grande do Sul

     Brasil

     
  2. [2] Clínica Dinato de Odontologia
• Localización: Journal of Clinical and Experimental Dentistry, ISSN-e 1989-5488, Vol. 16, Nº. 9 (September), 2024, págs. 1110-1119
• Idioma: inglés
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• Resumen

  • Tooth loss and use of a complete denture is still a reality and results in bone loss. Adequate reconstruction of an extremely atrophic edentulous maxilla is a challenge, and different treatment methods have been described for its resolution.

    Patients seeking implant placement in edentulous upper jaw with atrophic maxilla were selected in a private clinic in Porto Alegre, Brazil. The bone graft was performed with bilateral sinus lift and horizontal bone graft in anterior region with 0,25-1mm particles of Bio-Oss (Geistlich) covered with a collagen membrane (Bio-Gide, Geistlich). CBCTs were evaluated to verify the need for bone graft, and 6-8 months after bone graft follow-up, to plan implant placement and assess horizontal bone gain.

    124 implants were placed in 19 patients, 76 of those in the sinus region. The survival rate was 95.2%, with six implants lost over a mean implants follow-up time of 47.68 months. The horizontal bone gain ranged from 0.00 to 6.86 mm, a mean gain of 2.85mm. An average of 5.5g of Bio-Oss was used per patient, and in 73.7 % of the cases, a flapless surgery was possible for implant placement, and in 92 implants an immediate loading was possible. Final rehabilitation was accomplished with fixed prosthodontics in 16 patients with a mean follow-up of 38.4 months.

    Within the limitations of this study, it is possible to affirm that bone graft with 100% Bio-Oss in atrophic maxilla is a reliable treatment and allow rehabilitation with implants with a high survival rate and the higher the initial bone height, the greater the gain in bone width.